function validateDemo()
	{ 
	
	var emailAddress = document.demo.email.value;
	var at="@"
	var dot="."
	
	//remove spaces from telephone number
	var telString = "";
	var validateTel = document.demo.tel.value;
	validateTel = '' + validateTel;
	splitstring = validateTel.split(" ");
	for(i = 0; i < splitstring.length; i++)
	{
		telString += splitstring[i];
	}
	
		if(document.demo.name.value=="")
			{
				alert("Please enter your Name")
				document.demo.name.focus();
			}
			
		else if(document.demo.job.value=="")
			{
				alert("Please enter your Job Title")
				document.demo.job.focus();
			}
			
		else if(document.demo.company.value=="")
			{
				alert("Please enter the Company you work for")
				document.demo.company.focus();
			}
			
		else if(document.demo.city.value=="")
			{
				alert("Please enter your City")
				document.demo.city.focus();
			}
					
		else if(document.demo.tel.value=="")
			{
				alert("Please enter your Telephone Number")
				document.demo.tel.focus();
			}
			
		else if (isNaN(telString))
			{				
				alert("Please enter a valid Telephone Number")
				document.demo.tel.focus();
			}
			
		else if(document.demo.email.value=="")
			{
				alert("Please enter your Email Address")
				document.demo.email.focus();
			}
		
		else if (emailAddress.indexOf(at)==-1)
		{
			alert("Please enter a valid Email Address")
			document.demo.email.focus();
		}
		
		else if (emailAddress.indexOf(dot)==-1)
		{
			alert("Please enter a valid Email Address")
			document.demo.email.focus();
		}
		
		else
			{
				document.demo.submit();
			}
	}
	
	function validateContact()
	{ 
	
	var emailAddress = document.contact.email.value;
	var at="@"
	var dot="."
	
	//remove spaces from telephone number
	var telString = "";
	var validateTel = document.contact.tel.value;
	validateTel = '' + validateTel;
	splitstring = validateTel.split(" ");
	for(i = 0; i < splitstring.length; i++)
	{
		telString += splitstring[i];
	}
	
		if(document.contact.name.value=="")
			{
				alert("Please enter your Name")
				document.contact.name.focus();
			}
			
		else if(document.contact.job.value=="")
			{
				alert("Please enter your Job Title")
				document.contact.job.focus();
			}
			
		else if(document.contact.company.value=="")
			{
				alert("Please enter the Company you work for")
				document.contact.company.focus();
			}
			
		else if(document.contact.city.value=="")
			{
				alert("Please enter your City")
				document.contact.city.focus();
			}
					
		else if(document.contact.tel.value=="")
			{
				alert("Please enter your Telephone Number")
				document.contact.tel.focus();
			}
			
		else if (isNaN(telString))
			{				
				alert("Please enter a valid Telephone Number")
				document.contact.tel.focus();
			}
			
		else if(document.contact.email.value=="")
			{
				alert("Please enter your Email Address")
				document.contact.email.focus();
			}
		
		else if (emailAddress.indexOf(at)==-1)
		{
			alert("Please enter a valid Email Address")
			document.contact.email.focus();
		}
		
		else if (emailAddress.indexOf(dot)==-1)
		{
			alert("Please enter a valid Email Address")
			document.contact.email.focus();
		}
		else if(document.contact.enquiry.value=="")
		{
			alert("Please enter your requirements")
			document.contact.enquiry.focus();
		}
		else
			{
				document.contact.submit();
			}
	}